From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (mx1.redhat.com [172.16.48.31]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with SMTP id i2PFiNj22579 for ; Thu, 25 Mar 2004 10:44:23 -0500 Received: from khe-mailhub1.eigner.com (khe-mailhub1.eigner.com [194.120.231.246]) by mx1.redhat.com (8.12.10/8.12.10) with SMTP id i2PFiKWA004854 for ; Thu, 25 Mar 2004 10:44:21 -0500 Received: from agile.com (unknown [194.120.231.18]) by khe-mailhub1.eigner.com (Postfix) with ESMTP id 74B68851 for ; Thu, 25 Mar 2004 16:43:48 +0100 (CET) Message-ID: <4062FE4B.2020205@agile.com> Date: Thu, 25 Mar 2004 16:44:11 +0100 From: Klaus Strebel MIME-Version: 1.0 Subject: Re: [linux-lvm] Somewhat offtopic: Strange umount problem .... References: <200403251534.47502.krienke@uni-koblenz.de> In-Reply-To: <200403251534.47502.krienke@uni-koblenz.de> Content-Transfer-Encoding: 7bit Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: LVM general discussion and development Rainer Krienke wrote: > Hello, > > I have a problem with 3 server machines and I would as far as possible try to > isolate the bug which might be related to lvm or might not be. Perhaps > someone can help me where and how to look for the problem: > > I am running 3 NFS and SMB servers (suse8.2; SuSE kernel 2.4.21-199, LVM > 2.2.00.05) which run perfectly stable but show a strange behaviour > when rebooting the machines: The filesystems which contain user directories > cannot be umounted since the kernel claims that they are still busy. When I > switch to single user mode and run fuser -v or lsof on the mountpoints I > see no output. There are no more smb or other processes in the processlist > that might access the filesystems but nevertheless I cannot umount them. > The output of fuser -v shows only this: > > USER PID ACCESS COMMAND > /export/user1 root kernel mount /export/user1 > > fuser -vm /export/user1 and lsof /export/user1 do not output anything. > > The filesystems are xfs on top of LVM2 logical volumes which again run on > top of a md raid1 softmirror (the one and only physical vol) which is built > upon a md multipath device: > > xfs_fs: LVM2: md_soft_raid1: md_multipath: Fibrechannel_hardware_raid_5 > > Basically all of the software except for LVM2 is a "original" suse 8.2 > installation. > Hi Rainer, is your NFS-server shutting down on reboot. That's typical behaviour for an NFS-Server. Perhaps an exportfs -au is missing. Shared filesystems cannot be umounted. Ciao Klaus -- Klaus Strebel UNIX-Engineer Agile Software GmbH How Products Become Profits (TM) Ruschgraben 133 D-76139 Karlsruhe Office: +49 721 6291 0 Fax: +49 721 6291 1204 URL: